chromium/components/version_ui/resources/about_version_mobile.css

/* Copyright 2012 The Chromium Authors
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file. */

#outer {
  min-width: 0;  /* Wrap content to screen on mobile. */
  text-align: left;
  width: 90%;
}

#inner {
  width: auto;
}

#logo {
  float: none;
  margin-left: auto;
  margin-right: auto;
}